Question about Makita Tools 18V 1/2" Lxt Lithium - Ion Hammer Driver - Drill Kit - BHP451

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Worn bearings at the chuck - Makita Tools 18V 1/2" Lxt Lithium - Ion Hammer Driver - Drill Kit - BHP451

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  • Anonymous Apr 18, 2008

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No such parts in the chuck that you can replace.it comes in assy.

Posted on May 29, 2008

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Posted on Jan 02, 2017

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Why does my chuck keep loosening


First check whether you have the correct transmission setting for the bit you are using. This may affect the range over which the chuck operates and how it locks onto the bit. A conventional small-diameter drill bit may not work with a hammer drill setting. If the setting is correct, then either your hands aren't as strong as they used to be and you're not getting the chuck tight, or the chuck is worn and no longer has enough friction to hold.

Try this diagnostic: when you put a bit in, use a fine-tip felt marker to draw a line from the chuck collar (the part you turn to tighten or loosen) to the chuck baseplate. If the bit comes loose, check to see if the collar is still lined up at the same place relative to the baseplate. If it is, the chuck pieces are slipping inside; perhaps the transmission setting is incorrect for the bit chosen. If the collar has worked loose (the marks didn't stay lined up), the threading on the collar or the parts it engages could be worn.

May 23, 2014 | Dewalt 18v Battery Hammer Drill Dcd950...

1 Answer

Need to remove chuck on new BOSCH DDS181-02 18v cordless drill. No screw evident @ bottom of chuck-only small 1/16" hole. How do I remove chuck?


There is supposed to be a Phillips head LH thread screw in the chuck. I have seen the screw head worn down so you can no longer get a screwdriver to work.
We usually cut the chuck off with a metal chop saw just at the screw - thread what remains of the chuck off, which usually leaves 1/4" of the screw sticking out of the spindle - remove with vise grips.
Its not an easy prospect when that happens.

Oct 12, 2013 | Bosch 33614-2g 14.4v Brute Tough 1/2"...

1 Answer

Chuck/shaft wobble


check the bearings for the chuck shaft as they may be worn out

Aug 03, 2013 | Makita BDF452HW 18V Cordless Lxt Lithium...

1 Answer

Chuck won't hold bit when making drilling a hold or trying to reverse a screw, etc.


it sounds like you will need to replace the chuck on the drill. a worn chuck or a cheep brand may be your trouble.buy a good Jacob chuck and this will most likely fix your problem

Jun 20, 2013 | Dewalt 18 Volt Compact Drill Kit

1 Answer

I can't release the bit from the chuck.


If it is jammed then hold the bit in a vice and try to knock the chuck off with a cold chisel or suitable piece of brass. then you can remove the chuck screw and replace the chuck. You should not be able to see the bearings underneath.

Jan 27, 2013 | Black & Decker 18 Volt Cordless Drill...

1 Answer

Btd 140 rfe chuck not spinning true


The usual reason for major wobble of the spindle is a worn gearcase. It can easly be replaced. Any good repair agent can do it. If you want to do it yourself. Simply remove the circlip holding the chuck sleve on then take off the washer, spring and balls. release the light unit from underneath and take off the locking block. The gearbox cover will then unscrew (but can be tight) I think it is lefthand thread.Check spindle for wear and lubricate the bush bearing in the new gearcase, then rebuild in reverse mode

Jun 17, 2012 | Makita 18V LXT Lithium - Ion Cordless...

1 Answer

Problem with the Dewalt 3/8"VSR


My solution when the other mentioned ideas didn't work was this: I removed the 7 Torx #20 screws ( a common screw driver will work as well) and removed the housing half to expose the shaft. The chuck shaft bearings and gear lifts out as one assembly. Directly behind the chuck there is a half inch section of shaft exposed. I mounted a vise grip on the shaft (won't hurt it) and clamped the affair in a bench vise. With a 5/16" allen wrench mounted in the chuck and using a mallet I spun the chuck off with a solid smack counter clockwise . Very simple and easy .

Aug 29, 2011 | Dewalt 3/8"VSR 6AMP CORDED KY DEWALT DRILL...

1 Answer

The teeth in the drill chuck are worn. I can not seem to get the chuck off of then drill.


if u are trying to replace the chuck head place an alen wrench in the screw down inside of the chuck and give a sharp rap with hammer to braek lose(may be left handed dont remember)...hope it helps

Dec 22, 2010 | Dewalt 18 Volt Compact Drill Kit

1 Answer

My DC759 drill has no bearing clip


http://www.ereplacementparts.com/dewalt-dc759-type-18v-cordless-drill-parts-c-1009_1162_2837.html

Here is the parts diagram. I hate to say it but I always have problems getting the chuck out of the clutch/transmission without breaking something. I havent figured out how to keep the spindle from moving while I try to turn the chuck. Sorry if this doesnt help much.

Nov 26, 2009 | Dewalt 18 Volt Compact Drill Kit

1 Answer

BIT WAS STUCK, TOOK APART AND 2 SMALL BEARINGS FELL OUT


I'm not familiar with that brand, but it sounds like your chuck just fell apart.
It can be reassembled, but a better and more long lasting fix would be to get a replacement chuck and swap them out. This will save you what could turn into hours of frustration, attempting to repair the old chuck only to find it still doesn't spin freely or tighten correctly.
Note the numbers on the side of the chuck itself, as well as the tool make and model #. There's no need to replace it with the same brand, but what is essential is that you find the correct chuck mount for your drill. (This is usually a number code like 2JT, 3JT, etc.) If this is not marked on the chuck, you'll have to know the diameter and thread pitch of the shaft the chuck screws onto.
Other than that, you merely need to decide the capacity (size drill bit allowed) of the chuck you wish to put on your drill.

Do a web search about drill chucks and you can find many suppliers that will be happy to sell you a new one, and you'll soon be drilling with the best of them...
Hope you find this helpful! If so, please take the time to rate this post.

Mar 25, 2009 | Drills

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